71225133 has 8 divisors (see below), whose sum is σ = 108533568. Its totient is φ = 40700064.

The previous prime is 71225113. The next prime is 71225137. The reversal of 71225133 is 33152217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71225133 - 2⁵ = 71225101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71225137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1695816 + ... + 1695857.

It is an arithmetic number, because the mean of its divisors is an integer number (13566696).

Almost surely, 2^71225133 is an apocalyptic number.

It is an amenable number.

71225133 is a deficient number, since it is larger than the sum of its proper divisors (37308435).

71225133 is a wasteful number, since it uses less digits than its factorization.

71225133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391683.

The product of its digits is 1260, while the sum is 24.

The square root of 71225133 is about 8439.4983855677. The cubic root of 71225133 is about 414.5189820397.

The spelling of 71225133 in words is "seventy-one million, two hundred twenty-five thousand, one hundred thirty-three".